
Ford Sierra Cosworth
Sierra - Sierra Cosworth (1986-1992)
Price on request
Estimate: £18,000 - £22,000
Sat 11 & Sun 12 April This Ford Sierra Sapphire Cosworth 4x4 has had just 1 registered keeper from new. Finished in Diamond White, with Raven interior trim, the car is showing 60,007 miles on the odometer and the service book contains 17 stamps up to 58,483 miles in 2021. The vendor describes this as "an unmolested car that has not been restored", complete with Dalblair sticker in the rear window. The MoT is valid until 14th March 2027. It comes with a large collection of maintenance invoices ...
The Ford Sierra RS Cosworth (1986-1987) was the 3-door homologation special. Cosworth YB turbo with 204hp, whale-tail spoiler, limited-slip diff. Around 5,500 built. The legend begins. Values from £50k.
Sierra Cosworth: Engine - YB Cosworth turbo. Head gasket critical (especially early RS500s), timing belt every 36k, water pump, turbo (Garrett T3/T4). Strong if maintained. RS500 - even more stressed. Gearbox - T5/MT75 5-speed strong. 4x4 (Sapphire) - viscous coupling, transfer box. Body - Less rust than 70s Fords but check sills, inner wings. Rear spoiler expensive. Authenticity - Check chassis plate, build spec. Values rising - RS500 commanding serious money. Budget £4-8k annually.
RS500 (ultimate), 3-door RS (iconic), Sapphire 4x4 (practical), Unmodified, Matching numbers, Full history
Auction Date
Saturday, 11 April 2026
Starts at 10:00
Estimate
£18,000 - £22,000
Location
United Kingdom
Price on request